Studies on Production Technology and Major Disease Management of Oyster Mushroom

Abstract

Thesis Title: "Studies on the production technology and maJor disease management of oyster mushroom • Plourotus ipeoes are cullivated In lomoted Kale and cantrltlute only14 2 per cent o1 toYf annual productoon of worid (Chang, 1999) The present itlvest.gatlon ware camed out on 'Stud"' on the produetton technology and maJOr d•seases management of oyater mus1voom· The r"ultt of prennt 111\/fltJgatlon to study the variatiOn 1n d1tferent Plourorus specie$ 1n term of motphology and ytelcl o1 aporophofes The result shoY.ed lhat maxmum growth ol dned mycelium (4.32 mg) was recorded 11 pH 7 0 In P flabeii:Jtus. Maximum rad1al growth was observed in calcium carbonat. (90.00mm,) 1n p flobellotus and In calcium sulphate (90mm) In P. nor/do Maximum weight of dried mycelium (5.54 mg) was recorded In calcium sulphate In P djamor radial growth (90 00 mm) was found 1n Oat e~I!Kt agar m«toum and potato deX11ose egar medoum P dJBmor P flonda. P etyngtt and p n.w.tus rMpecllvely Max1mum dry matter growth (6.39. 6 00 ,4 19&6 09 mg) was found in Malt Exlrad Broth (MEB) medii In P. species P dJamor • P florida, P. flab/latus and P 8'Yf1911 sugar solutton m. Fructose, mallose. sucrose, starch and glucose results rltYNied that mal<Jmtlf11 rldl8! gtOWih was found In glucose (90 OOmm ). In dry mya~UI growlll - used ma>:mum dry rn)Cellal grow111 - fQMid 111 g!ucose (5.70 mg ) in P. lfab•.,tus. Elfect ol range oltamperatures (20-350C) on 1t1e rlldial g~o~ o1 P 411mor and P. ery'llgl exhoboted highest rae1 ... 1 growlh (90 00 mm) at the cempera~~n o1 290C. Maxomum rad<al growth (89 00 mm) In P d1amcx was recorded on GJbbereUc acid 10 ppm concontratoon In case of lndol butane a< ld at5 ppm cancenlrllloon (45 66 mm). For spawn improvement, sorghum gra1n was Stgmfic~mlly superiQr to other graon spawn In P nor~c((t but In case of P. djamor myco11111 growth of bajra groin was superior than other grains. The different combination of celclum carbonate and calcium sulphate In d1fferent ratio Increase the apawn growth n both Pleurolus spp The max1mum spawn growth (90 00 mm) was obsetved In 0 2 1 5 ratio (CaCOJ CaS04) on P. llonda and 0 3 0 9 rallO (CaC03 CaS04) Among al the rrve sugar m••ed sub"rates. max1mum mycelial growth(90.00 mm) was found 1n glucose on 15 days Follov.ocl by maltose (88 00 mm) 1n P flonda and fructose (87.33 mm) In P. djamor. Maximum )iald rec:on:led from P ~ ,."N(570. 70 gn<g aond lrom P. 0Ji1111CX .,,.. 495 65 Wl<g ol dry sutntrate 111 spawn rate expenment Mwmum sporophore yield (736.66 g/Kg and 550 00 g. 'Kg dry substtate) and average number of sporophores (15.00 per bag and 1900 per bag) were noliead 1n P tloti<il and P d)amor, respodJvely 1n soybean flour as organc supplement Max1mum yield and number o1 sporophOfes of P flonda (81 0 00 gll<g of dry substtate v.ere oOselved In calcium sulphate. calcium sulphate Maxmum YM!Id and number of sporophores of P dJBifiCX (500.00 g.'Kg o1 dry substrate and 24 00 sporophores) were observed In calcium t>ulphale. For the gra111 t>pawn, higher )leld of P flOrida and P dJ8mor wt!fe obtaoned from bajra gralf'l aptwn 515 00 g/Kg and 470 00 g/Kg ol dry su!lsltaltl, respec;tovely. As ahown green mould caused by Tnchod6rrN spp. and baclet1ool roc caiiSid by Pseudomonas app. They attack on aubsttates, of pinhead 11nd fru1t1ng body of belCh Pteurotus spp aprey~ng of Carbandazlm 0.0025% + Streptomyc:m 400 ppm were spraying two time tn whiCh d sea'e InCidence was as graen mould (8 50 and 8 33%). and bactenal rot (3.67 end 6.33%) spec!" o1 P. nonda ond P d)amor respectively Mruumum )llekl are found 1n the "'-"O lime spray of CaiOondiZIITI 0 0025% + Streptomycin 400 ppm (570.00 and 473 30 g/kg) In both Plourotus spp respect1vely